CN100504142C - Gas flow follow-up automatic odor-adding device - Google Patents
Gas flow follow-up automatic odor-adding device Download PDFInfo
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- CN100504142C CN100504142C CNB200510057099XA CN200510057099A CN100504142C CN 100504142 C CN100504142 C CN 100504142C CN B200510057099X A CNB200510057099X A CN B200510057099XA CN 200510057099 A CN200510057099 A CN 200510057099A CN 100504142 C CN100504142 C CN 100504142C
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- odorant
- flgd
- flanged
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Abstract
A gas flow slave automatic odorizing device, which utilizes the throttle principle of the throttle pressure difference directly proportional with flow, sensing the gas flow in pipe, driving the odorizing agent into gas delivery pipe according to proportion by using the throttle pressure difference, said device containing the throttle mechanism installed on gas delivery pipe, odorizing agent storage mechanism, gas equilibrium pipe, odorizing agent feeding pipe, connection valve and needle shape valve. Said invention has high reliability, simple structure, easy operation and low cost.
Description
Technical field:
The present invention relates to the automatic device for adding odor of gas flow, be applicable to that purifying gas adding before use is smelly, is specially adapted to the making gas ordorous of small-sized compressed natural gas supply station or LNG Liquefied natural gas supply station.
Background technique:
In the process of city and Development of Small Cities and Towns gas supply, the safety issue of gas supply is subjected to extensive attention, when the combustion gas of sulfur-bearing is not as gas source, must add a certain amount of odorant therein, make it and to be leaked for perception by the people, to guarantee the safety of air feed.
Particularly in the gasification process of samll cities and towns, the compressed natural gas air feed is a kind of at present just in primary study and the new technology of wideling popularize, and compressed natural gas is not allow sulfur-bearing, even the rock gas of sulfur-bearing also should be removed before compression, so, again add smellyly in the air feed process again, otherwise the combustion gas of carrying does not just meet NBS.
The apparatus for making gas ordorous of Shi Yonging mainly contains two kinds in the market:
Simple and easy titration formula device for adding odor is referring to Fig. 4.
Simple and easy titration formula device for adding odor is by the odorant stocking mechanism, the gas-liquid equilibrium pipe, connecting valve and needle value and odorant delivery pipe constitutes, odorant in the odorant storage tube relies on the capillarity of gravity and burette, the odorant titration is entered in the gas supply pipe and in combustion gas evaporate, reach in view of the above and add smelly effect.
The pouring-in device for adding odor of single-chip microcomputer or microcomputerized control is referring to Fig. 5.
The pouring-in device for adding odor of single-chip microcomputer or microcomputerized control is by the odorant stocking mechanism, controller, metering adds smelly pump, the injector valve constitutes, odorant in the odorant storage tube adds smelly pump by metering and imports the odorant delivery pipe, by the injector valve odorant being injected gas supply pipe again adds smelly with combustion gas mixing, the flow of odorant adds smelly pump by metering to be regulated, regulate basis source in controller, controller decides metering to add the output of smelly pump according to the odorant concentration data of gathering in the combustion gas from gas supply pipe.
Above device for adding odor deficiency is: the smelly needs that add of combustion gas keep the concentration of odorant in combustion gas to be in the critical field, too much add the deterioration that smelly meeting causes combustion gas, very few add the smelly effect for perception that can not guarantee again to reach by the people, therefore, first kind of mode be not because can accurately embody the flow of combustion gas and the relation of odorant amount and can not realize adding smelly purpose with the flow servo-actuated of delivery of fuel gas is proportional, moreover can't be at big flow making gas ordorous, also cause the waste of odorant easily.The second way need be obtained the odorant concentration data in being added smelly combustion gas, and need control accurately, increased the complexity of system, simultaneously, system does not have the false judgment function, and odorant concentration Detecting element lost efficacy easily, if sampled data goes wrong, mistake appears in the output that just can make metering add smelly pump, can not realize that carrying out equal proportion with the flow size of delivery of fuel gas adds smelly purpose.
Summary of the invention:
Purpose of the present invention, be at above-mentioned the deficiencies in the prior art, utilize the flow characteristic of the differential manometer flow characteristic and the differential pressure pipeline of throttle mechanism, a kind of gas flow follow-up automatic odour-adding device is provided, to solve the concentration ratio fixation problem and the odorant concentration Detecting element Problem of Failure of gas flow and odorant amount, improved the reliability of device greatly.
For the purpose that realizes that foregoing invention is created, technological scheme of the present invention is:
This device comprises gas supply pipe, throttle mechanism, the odorant stocking mechanism, connect valve, needle value, the gas-liquid equilibrium pipe, the odorant delivery pipe, gas supply pipe is communicated with the throttle mechanism sealing and fixing, before on the connecting tube of the front and back of throttle mechanism, being respectively equipped with, pressure guide hole is pressed in the back, and with throttle mechanism before, back connecting tube inner chamber is communicated with, and is preceding, the back is pressed on the pressure guide hole connection valve is housed respectively, presses the connection valve on the pressure guide hole to fixedly connected with an end of gas-liquid equilibrium pipe before being positioned at, on the odorant storage tube of the other end of gas-liquid equilibrium pipe and odorant stocking mechanism to be connected valve fixedly connected, be positioned at the back and press the connection valve of pressure guide hole to be connected with an end of odorant delivery pipe, the other end of odorant delivery pipe is fixedlyed connected with needle value, and the interior odorant catheter of this needle value and the odorant storage tube on being installed in the odorant stocking mechanism is connected.
The present invention adopts the Throttle Principle of fluid that equal proportion is carried out in the combustion gas in the gas supply pipe to add smelly, its working principle is as follows: the gas that flows in the gas supply pipe is by throttle mechanism the time, produce chock pressure difference before and after the throttle mechanism, and utilize the chock pressure difference of its generation, enter power in the fuel gas transportation pipeline as odorant.According to the gas throttling principle, the flow Q of the gas by throttle mechanism
1And the pass between the pressure differential deltap P before and after the throttle mechanism is: Q
1=k
1Δ P
1/2Because the upper gaseous phase space of odorant storage tube is connected by the gas-liquid equilibrium pipe with gas supply pipe, before the throttling of gaseous pressure and gas supply pipe is identical, therefore, odorant liquid phase in the odorant storage tube just flows into gas supply pipe, odorant flow Q by the odorant catheter through the odorant delivery pipe under the effect of differential pressure
2Size and throttle mechanism before and after pressure differential deltap P between the pass be: Q
2=k
2Δ P
1/2, wherein, k
1Only relevant with the structural parameter of throttle mechanism, k
2Only relevant with the structural parameter of odorant delivery pipe, then: in fact the ratio of the gas flow in the odorant flow in the odorant delivery pipe and the gas supply pipe is exactly to add smelly concentration, represents have with α if add smelly concentration: α=Q
2/ Q
1=k
2/ k
1, because k
1In manufacture process, demarcate,, reach the flow servo-actuated and add smelly purpose as long as just can keep adding smelly concentration to a certain setting value by the pipe impedance of needle value adjustment odorant delivery pipe.
The present invention has following technique effect:
1. the present invention only needs throttle mechanism is connected on the fuel gas transportation pipeline, the gas-liquid equilibrium pipe is connected with the odorant storage tube respectively with the odorant delivery pipe, when system moves, the impedance of odorant delivery pipe is suitably adjusted, just can constitute with the gas flow servo-actuated add smelly system automatically, improved the reliability of device greatly.
The present invention in normal operation, without any need for additional power source,, simple in structure, easy and simple to handle, with low cost also without any need for electric control device.
The present invention can be widely used in gas supply station particularly in compressed natural gas, the LNG Liquefied natural gas air feed process add smelly.
Description of drawings
Fig. 1 is a plan view of the present invention,
Fig. 2 is the structure amplification profile of first kind of throttle mechanism,
Fig. 3 is the structure amplification profile of second kind of throttle mechanism,
The existing titration formula of Fig. 4 adds smelly system schematic,
The existing pouring-in smelly system schematic that adds of Fig. 5.
In Fig. 1-5:
1-gas supply pipe 2-connecting tube 3-odorant storage tube
4-gas-liquid equilibrium pipe 5-odorant delivery pipe 6-connects valve
7-needle value 8-feed end 9-level meter
.10-blowdown valve 11-support 12-odorant catheter
13-injector valve 14-adds smelly valve 15-rack
16-reflux valve 17-breathes fire insulation valve 18-atmospheric valve
19-controller 20-sampling pipe 21-sampled signal line
The 22-metering adds smelly pump 23-observation tube 24-restricting orifice
The flanged (FLGD) connecting tube 27 of 25-throttle nozzle 26--preceding pressure pressure guide hole
Press pressure guide hole 29-bolt 30-nut behind the 28-
Embodiment
First kind of throttle mechanism comprises restricting orifice 24, two identical flanged (FLGD) connecting tubes 26, restricting orifice is fixed between two identical flanged (FLGD) connecting tubes, there is the through hole of a frustoconic shape at the middle part of restricting orifice, the through hole of its big frustoconic shape end face flanged (FLGD) connecting tube rearwards, the tapering of the through hole of this frustoconic shape is 30 °, its little frustoconic shape end face is to the through hole of flanged (FLGD) connecting tube of front, the inner diameter d of its little frustoconic shape end is 1/30～1/8 with the ratio of the through-hole diameter D of flanged (FLGD) connecting tube, and the thickness of restricting orifice is more than or equal to 1.5mm and be less than or equal to 0.03 times of connecting tube inner diameter.
Second kind of throttle mechanism comprises throttle nozzle 25, two identical flanged (FLGD) connecting tubes 26, throttle nozzle is fixed between two identical flanged (FLGD) connecting tubes, there is a flaring through hole at the middle part of throttle nozzle, the tubaeform end face of throttle nozzle middle part through hole is to the through hole of flanged (FLGD) connecting tube of front, the through hole of other end flanged (FLGD) connecting tube rearwards, its inner diameter d is 1/5～4/5 with the ratio of the inside diameter D of the through hole of flanged (FLGD) connecting tube, the inlet convergent curved surface of bell-shaped nozzle is 1/4 oval ball outer surface, the long axis length of oval ball is 2 times of the other end diameter of tubaeform through hole, be 2d, minor axis length is the other end diameter of tubaeform through hole, be d, put in 0.5 times of through-hole diameter of this connecting tube in the other end of bell-shaped nozzle flanged (FLGD) connecting tube rearwards, be 0.5D, the thickness of throttle nozzle is 3mm.
Odorant storage tube 3 of the present invention is provided with connection valve 6 and is fixedly linked with gas-liquid equilibrium pipe 4, the top that odorant catheter 12 passes odorant storage tube 3 is deep into bottom and fixedly connected at top seal, needle value 7 is fixedly connected with it, odorant delivery pipe 5 is fixedly connected on the needle value 7, also be provided with the feed end 8 and the level meter 9 that are used to feed in raw material, level meter 9 is used to observe the odorant amount in the odorant storage tube 3.
Claims (3)
1. gas flow follow-up automatic odour-adding device, comprise gas supply pipe, the odorant stocking mechanism, connect valve, needle value, the gas-liquid equilibrium pipe, the odorant delivery pipe, it is characterized in that this device also comprises throttle mechanism, gas supply pipe is communicated with the throttle mechanism sealing and fixing, before throttle mechanism, before being respectively equipped with on the back connecting tube, pressure guide hole is pressed in the back, and with throttle mechanism before, back connecting tube inner chamber is communicated with, before, the back is pressed on the pressure guide hole connection valve is housed respectively, press the connection valve on the pressure guide hole to fixedly connected before being positioned at an end of gas-liquid equilibrium pipe, on the odorant storage tube of the other end of gas-liquid equilibrium pipe and odorant stocking mechanism to be connected valve fixedly connected, being positioned at afterwards, the connection valve of pressure pressure guide hole is connected with an end of odorant delivery pipe, the other end of odorant delivery pipe is fixedlyed connected with needle value, this needle value be installed in the odorant stocking mechanism on the odorant storage tube in the odorant catheter be connected.
2. gas flow follow-up automatic odour-adding device according to claim 1, it is characterized in that throttle mechanism comprises restricting orifice, two flanged (FLGD) connecting tubes, restricting orifice is fixed between two identical flanged (FLGD) connecting tubes, there is the through hole of a frustoconic shape at the middle part of restricting orifice, the through hole of its big frustoconic shape end face flanged (FLGD) connecting tube rearwards, the tapering of the through hole of this frustoconic shape is 30 °, its little frustoconic shape end face is to the through hole of flanged (FLGD) connecting tube of front, the inner diameter of its little frustoconic shape end is 1/30～1/8 with the ratio of the through-hole diameter of flanged (FLGD) connecting tube, and the thickness of restricting orifice is more than or equal to 1.5mm and be less than or equal to 0.03 times of connecting tube inner diameter.
3. gas flow follow-up automatic odour-adding device according to claim 1, it is characterized in that throttle mechanism comprises throttle nozzle, two identical flanged (FLGD) connecting tubes, throttle nozzle is fixed between two identical flanged (FLGD) connecting tubes, there is a flaring through hole at the middle part of throttle nozzle, the tubaeform end face of throttle nozzle middle part through hole is to the through hole of flanged (FLGD) connecting tube of front, the through hole of other end flanged (FLGD) connecting tube rearwards of throttle nozzle middle part through hole, the diameter ratio of the inner diameter of the other end of throttle nozzle middle part through hole and the through hole of flanged (FLGD) connecting tube is 1/5～4/5, the inlet convergent curved surface of bell-shaped nozzle is 1/4 oval ball outer surface, the long axis length of oval ball is 2 times of the other end diameter of tubaeform through hole, minor axis length is the other end diameter of tubaeform through hole, put in 0.5 times of through-hole diameter of this connecting tube in the other end of bell-shaped nozzle flanged (FLGD) connecting tube rearwards, the thickness of throttle nozzle is 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510057099XA CN100504142C (en) | 2005-06-02 | 2005-06-02 | Gas flow follow-up automatic odor-adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510057099XA CN100504142C (en) | 2005-06-02 | 2005-06-02 | Gas flow follow-up automatic odor-adding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743723A CN1743723A (en) | 2006-03-08 |
| CN100504142C true CN100504142C (en) | 2009-06-24 |
Family
ID=36139203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510057099XA Expired - Fee Related CN100504142C (en) | 2005-06-02 | 2005-06-02 | Gas flow follow-up automatic odor-adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100504142C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206009B (en) * | 2007-12-04 | 2012-09-05 | 王林 | Unpowered odorizing device |
| CN101975337B (en) * | 2010-08-27 | 2013-02-27 | 北京世纪大地燃气有限公司 | Fuel gas odorizing device |
| CN102563357A (en) * | 2012-01-16 | 2012-07-11 | 贝洪毅 | Self-operated gas odorization device |
| CN106352238B (en) * | 2016-11-24 | 2019-09-03 | 四川蜀谷仪表科技有限公司 | Making gas ordorous control device and making gas ordorous system |
| CN108843974B (en) * | 2018-07-12 | 2019-11-26 | 成都深冷科技有限公司 | A kind of the follow-up type apparatus for making gas ordorous and its stink adding method of no energy consumption |
| CN109307372B (en) * | 2018-12-13 | 2021-11-26 | 湖南利农五倍子产业发展有限公司 | Full-automatic cleaning device of solar water heater |
-
2005
- 2005-06-02 CN CNB200510057099XA patent/CN100504142C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN1743723A (en) | 2006-03-08 |
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Granted publication date: 20090624 Termination date: 20110602 |